Cable-roller.



No. 856.335. PATENTED JUNE 11, 1907. w. GALLAHAN.

CABLE ROLLER. APPLICATION FILED MAR; 2a, 1906.

III/II THE unRRls PETERS-CO- wAsmusraN, u. c.

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UNITED STATES PATENT orrron.

CABLE-ROLLER.

Specification of Letters Patent.

Patented June 1 1, 1 907'.

Application filed March 28,1906. Serial No. 303,539,

To aZZ whom it may concern..-

Be it known that I, WVILLIAM CALLAHAN, a citizen of the United States, residing at Quincy, in the county of Adams and .State of Illinois, have invented new and useful Improvements in Cable-Rollers, of which the following is a specification.

This invention relates to cable rollers.

Cable rollers are used by telephone companies and others in the stringing of aerial cables which are generally supported by suspension wires. In order to perform their work it is first necessary to attach the cable rollers to the suspension wires and then a rope is generally passed through the roller with one end fastened to the end of the cable which is about to be pulled upon and over all of the rollers, by means of horse or other power desired. After the cable is drawn in place upon the rollers, it is generally fastened permanently to the suspension wire by means of cable hangers or in any other suitable manner and the cable rollers are then removed from the suspension wire.

It is therefore one object of my invention to provide a cable roller embodying such characteristics that it may be readily and quickly attached or detached from a suspension wire or other support.

Another object resides in the pro vision of a cable roller providing means whereby it may be readily clamped or otherwise secured upon a suspension wire to prevent accidental dis placement or shifting thereof.

A still fiu'ther object resides in the pro vision of means associated with the roller to prevent accidental displacement of the cable from the roller.

Further, it is an object of my invention to so construct the axis of the roller and provide it with means whereby the roller be held in different positions upon the axis.

\Vith these objects in view the invention consists in the construction, combination and arrangement of parts, all as will be more fully ter than the suspension wire illustrated in Fig. 3.

In the stringing of aerial cables a series of rollers would be employed and since all rollers would be of the same construction I shall herein describe a single roller; hence in the accompanying drawings it will be seen that I employ a frame for the support of the cable roller 1 which is mounted upon an axis 2 connected to the lower end of the arm 3 which latter depends from an intermediate ortion of the head 4 of the frame and w ich is' curved, as at 5, to lie outwardly and rearwardly of one side of the head to permit the roller 1 to lie immediately beneath the head. This roller 1 is provided with a cable receiving groove 6 and to prevent the cable from becoming displaced with respect to the roller 6 I provide a guard 7 which is disposed immediately over the roller, as shown.

The head 4 has a longitudinal groove 8 formed in its under face for a purpose presently explained and it also has each end reduced, as at 8, to form a shoulder 9 to prevent undue inward movement of the cylindrical shaped heads 10 of the corres onding levers 11, there being a lever at eac end of the head of the frame. The outer edge of the heads 10 are cut away to form a shoulder 12 adapted to contact with the corresponding stop 13 of the head 4 when the levers are in vertical position. Each head is also provided with a slot 14 adapted to aline with the adj acent longitudinal groove 8 of the head 4 when the levers 11 are in vertical position. This alinement of the slots 14 of the heads 10 with the groove 8 permits the roller carrying frame to be engaged upon the suspension wire or other su port 15. In order to prevent accidental isplacement of the roller carrying frame with respect to the suspension wire or other support 15, the levers 11, with their heads 10, should be turned from the vertical position shown in Figs. 1 and 2 to the dotted line position in Figs. 2. Such turning of the levers and their heads forces the cable into the slot of the head 4, causing the latter to follow the irregular line of the slot of said head 4, as shown in Figs. 3 and 4. Thus the head may have a tight binding engagement with the cable and the levers may be limited intheir downward swing by the sto 16 carried by the levers 11 engaging the a oresaid stop 13.

From the foregoing it will be seen that an effective clamping action may be had between the frame and the suspension wire or support ITO to prevent accidental displacement of the roller carrying frame. To still further prevent accidental displacement of the roller carrying frame longitudinally of the suspension wire 15, 1 form the ends of the aforesaid longitudinal groove 8 deeper than the intermediate portion thereof to provide the shoulders 17. The shoulders 17 of the groove 8 obviously result in a bending of the suspension wire 15, shown in Fig. 3, tending to prevent movement of the frame longitudinally of the suspension wire. However, if desired, the setscrew or equivalent element 18 which pierces the head 4 of the frame, may be turned to have the clamping action upon the suspension wire. Further, since, it is possible that the use of my improved roller carrying the frame may be desired in connection with suspension wires of smaller diameter than those usually employed, the set screw 18 '(Fig. 1) will be found of material assistance in precluding the possibility of movement of the frame longitudinally of the suspension w1re.

In Fig. 2 it will be seen that the axis 2 is of greater length than the width of the roller 1 and this is done in order to permit shifting of the roller from under the guard 7 when putting on and taking off the cable. This shifting movement may be accomplished by removing the inner key 19 from the socket formed therefor intermediate the ends of the axis and forcing the roller against the outer key 20, when the said inner key may be replaced to hold the roller in its shifted position as shown in dotted lines in Fig. 2.

Having thus described my invention, what 'I claim and desire to secure by Letters Patthe axis, a guard mounted above the roller and a clamping lever mounted at each end of the head and provided with a slot adapted to be thrown into and out of registration with the aforesaid groove of the head.

2. A cable roller comprising a frame including a head having a groove therein, an arm secured to the head and depending therefrom, an axis mounted at the lower end of the arm a roller mounted upon the axis, a guard mounted above the roller, a clamping lever mounted at each end of the head and provided with a slot to be thrown into and out of registration with the aforesaid groove according to the position of the levers, and means of limiting the downward movement of the lever.

3. A cable roller comprising a frame including a head having a groove carried therein and engaged with a suspension wire, an 1 the axis being of greater length than the width of the roller, means whereby the roller may be shifted for rotation upon different parts of the axis, a guard mounted above the roller, and means whereby the head of the frame may be clamped upon the suspension mm.

4. A cable roller comprising a frame including a head and an arm, an axis secured to the arm, a roller mounted upon the axis, and means whereby the roller may be shifted for rotation upon different parts of the axis.

5. A cable roller comprising a frame including a head, an arm secured to the head and depending therefrom, an axis secured to the lower end of the arm, a roller mounted upon the axis and means whereby the roller may be shifted for rotation upon different parts of the axis.

6. A cable roller comprising a frame for support upon a suspension wire, the frame including a head and an arm, and an axis carried by the arm, a roller mounted upon the axis, means whereby the roller may be shifted for rotation upon different parts of the axis, and means for securing the frame upon the suspension wire.

7. A cable roller comprising a frame including a head and an arm, an axis secured to the arm, a roller mounted upon the axis, means whereby the roller may be shifted for rotation upon different parts of the axis, and a guard cooperating with. the roller in one of its positions upon the axis. 8. A cable roller comprising a frame including a head having a groove of irregular depth for engagement upon a suspension wire, a roller mounted beneath the head, levers mounted upon the head for detachably clamping the frame to the suspension wire, and means passed through the head for action upon the suspension wire.

9. A cable roller comprising a frame including a head and an arm, the head having a groove of irregular depth, an axis carried by the arm, a roller mounted upon the axis, means whereby the roller may be shifted for rotation upon different parts of the axis, and a guard cooperating with the roller in one of its positions.

In testimony whereof I affix my signature, in presence of two subscribing witnesses.

WILLIAM CALLAHAN.

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